CT vs Ct.

CT and Ct. both are nouns.

Word	Noun	Adjective	Verb	Adverb
CT	Yes	No	No	No
Ct.	Yes	No	No	No

As nouns, CT and Ct. are synonyms defined as:

Other synonyms of CT include Connecticut, Constitution State, Nutmeg State.

CT (noun)	Ct. (noun)
a method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis	a New England state; one of the original 13 colonies
a New England state; one of the original 13 colonies